Improvement in india-rubber paint



' U ITED STATES PATENT OFFICE.

WILLIAM BUTCHER AND WILLIAM A. BUTCHER, OF PHILADELPHIA, PA.

IMPROVEMENT IN INDIA-RUBBER PAINT.

specification forming part of Letters Patent No. i 8, E 83, dated September 15, 1857.

To all whom it may concern.-

Be it known that we, WILLIAM BUTCHER and WILLIAM A. BUTCHER, of the cityand county of Philadelphia, and State of Pennsyl paring and combining certain specified articles to form a paint that shall be, when applied and dried, impervious to moisture and water. To enable others skilled in the art to make and use our invention, we will proceed to describe the process and materials used by us.

I \Ve take one gallon of linseed-oil and put into it from eight to twelve pounds of crude india-rubber, and boil them in a suitable vessel until the rubberis entirely dissolved. We then grind the preparation thus obtained in a paint-mill with any of the coloring-matters in ordinary use (according to the colored paint desired) for the thorough admixture of it with We then thin it with painters oil to the proper consistency, and it is ready to the color.

be applied in the same manner as ordinary paint. The quantity of rubber dissolved in the oil may be varied to produce a thick; or thin coating of it in the paint when dried, as may be required by the particular exposure of the part to which it is app1iedas, for eiample, thefront orsides of the building would not require as heavy a coating to protect them as would the roof.

The paint, when dried, being impervious to I water and not subject to injury from heat or cold, and not liable to injury from the clasticity of the rubber by the shrinkingor swell- 'ing' of boarded surfaces or the pliability of WM. BUTCHER. \VM. A. BUTCHER.

Witnesses:

J OHN THOMPSON, WM. GARRIGUES. 

